Testing best practices with React & Jest

[jamiedavenport]

I'm looking for some advice on testing applications that use Capacitor. I wasn't able to find any obvious docs about testing best practices but I imagine that's because it's just the same as what the underlying tools use.

Context

• React SPA
• Jest
• React Testing Library

An example path that I want to test looks like this:

const handleClick = async () => {
  if (Capacitor.isPluginAvailable('Camera')) {
    const image = await Camera.getPhoto({...});
  } else {
    // Use web file picker
  }
}

Questions

• Are there any documented best practices about testing anywhere?
• In the example above would there be a better solution than mocking isPluginAvailable and Camera.getPhoto, then clicking the upload button and asserting the state is as expected?